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Manual Release in an 'Old' Douglas-Fir Plantation Increases Diameter Growth

机译：“老”道格拉斯 - 冷杉种植园的手动释放增加了直径增长

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Twelve-year-old Douglas-fir saplings on the Mad River Ranger District, Six Rivers National Forest, California were released by cutting competing vegetation in a 9-foot radius to test the timing and efficacy of the method in plantations older than those in which such work traditionally is done--the first 5 years. Nine years after release, the average stem diameter (3.60 inches or 9.14 cm) of released Douglas-fir saplings, taken at 12 inches (30 cm) above mean groundline, differed significantly from that of control saplings (2.98 inches or 7.75 cm) (P 0.05), although the average height did not differ (p 0.05). In spite of the finding, the stem diameter of released saplings was 40 percent less than that needed to comply with regional Forest Service growth objectives. Cost of release averaged $428 per acre or $1058/ha in 1978 dollars.

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作者
McDonald, P. M.; Tucker, R. A.; Fiddler, G. O.; Colaninno, A.;
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年度 1989
页码 p.1-6
总页数 6
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Forestry ; Fir trees ; Plant growth ; Age ; Releasing ; Diameters ; Cost analysis ; Vegetation ; California;

机译：林业;杉树;植物生长;年龄;释放;直径;成本分析;植被;加利福尼亚;

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1. Annualized diameter and height growth equations for Pacific Northwest plantation-grown Douglas-fir, western hemlock, and red alder [J] . Weiskittel AR, Garber SM, Johnson GP, Forest Ecology and Management . 2007,第3期

机译：西北太平洋人工林种植的道格拉斯冷杉，西部铁杉和赤al木的年直径和高度生长方程
2. Predicting the diameter of the largest breast-height region branch of Douglas-fir trees in thinned and fertilized plantations. [J] . Forest Products Journal . 2010,第4期

机译：预测稀疏和施肥人工林中道格拉斯杉树的最大胸高区域分支的直径。
3. Effect of precommercial thinning followed by a fertilization regime on branch diameter in coastal United States Douglas-fir plantations [J] . Briggs D.G., Kantavichai R., Turnblom E.C. Canadian Journal of Forest Research . 2008,第6期

机译：在美国沿海道格拉斯冷杉人工林中进行商业前疏伐和施肥制度对分支直径的影响
4. Increase of reliability of contact networks of electric transport, due to increase of strength of the joint unit of pipes of different diameters [C] . L S Sabitov, N F Kashapov, IR Gilmanshin International Scientific-Technical Conference on Innovative Engineering Technologies, Equipment and Materials . 2017

机译：增加电力运输网络的可靠性增加，由于不同直径的管道的关节单元的强度的增加
5. Stem and Branch Diameter Response in Pruned Douglas-fir Plantations (Pseudotsuga menziesii var. menziesii): Implications for Volume and Clear Wood Production in the U.S. Pacific Northwest [D] . Kirby, John W. 2016

机译：修剪的花旗松人工林（Pseudotsuga menziesii var.menziesii）的茎和枝直径响应：对美国西北太平洋地区木材产量和透明木材的影响
6. Do mycorrhizal network benefits to survival and growth of interior Douglas-fir seedlings increase with soil moisture stress? [O] . Marcus A Bingham, Suzanne W Simard 2011

机译：菌根网络是否会因土壤水分胁迫而增加花旗松内部幼苗的存活和生长？
7. Manual release in an "old" Douglas-fir plantation increases diameter growth / [O] . McDonald, Philip M., Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.) 1989

机译：在“老”道格拉斯冷杉种植园中手动释放增加直径增长/
8. Repeated Manual Release in a Young Plantation: Effect on Douglas-Fir Seedlings,Hardwoods, Shrubs, Forbs, and Grasses [R] . McDonald, P. M., Fiddler, G. O., Harrison, H. R. 1994

机译：在一个年轻的种植园重复手动释放：对道格拉斯 - 冷杉幼苗，硬木，灌木，玉米和草的影响

Manual Release in an 'Old' Douglas-Fir Plantation Increases Diameter Growth

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